.container {
    width: 100%;
  }
  .slide {
    width: 100%;
    overflow: hidden;
    position: relative;
    height: 9.38rem;
  
    perspective: 500;
    -webkit-perspective: 500; // 3D
  }
  .back {
    transform: rotateY(-180deg);
  }
  .fan-front {
    transform: rotateY(-180deg);
  }
  .fan-back {
    transform: rotateY(-360deg);
  }
  .slide .img {
    overflow: hidden;
    position: absolute;
    transition: width 0.4s, height 0.4s, top 0.4s, left 0.4s, z-index 0.4s;
    -webkit-perspective: 10000;
    backface-visibility: hidden;
    transition: all 1s;
  }
  .slide .img img {
    width: calc(100% - 14px);
    height: calc(100% - 14px);
    margin: 7px;
  }
  .slide .img1 {
    width: 40%;
    height: 40%;
    top: 30%;
    left: -110%;
    z-index: 1;
    opacity: 0.4;
  }
  .slide .img2 {
    width: 60%;
    height: 60%;
    top: 20%;
    left: -50%;
    z-index: 2;
    opacity: 0.4;
  }
  .slide .img3 {
    width: 80%;
    height: 80%;
    top: 10%;
    left: 10%;
    z-index: 3;
  }
  .slide .img4 {
    width: 60%;
    height: 60%;
    top: 20%;
    left: 90%;
    z-index: 2;
    opacity: 0.4;
  }
  .slide .img5 {
    width: 40%;
    height: 40%;
    top: 30%;
    left: 150%;
    z-index: 1;
    opacity: 0.4;
  }
  button {
    width: 50px;
    margin: 20px;
  }
  
  .slide-bt {
    position: absolute;
    left: 0%;
    bottom: -30%;
    z-index: 10;
    img {
      width: 1.2rem;
      height: 1.5rem;
      margin-top: .2rem;
      margin-left: 0.05rem;
      border-radius: 0.02rem;
    }
    .on {
      border: 0.04rem solid red;
      //background: #ffd200;
    }
  }
  .slide-bt span {
    width: 24px;
    height: 8px;
    background: #c9caca;
    float: left;
    margin: 5px;
    border-radius: 4px;
  }
  .slide .slide-bt .on {
    background: #ffd200;
  }
  
  .img-fan {
    // animation:play 1s linear infinite;
    animation: play 1.5s ease-in-out;
    transform: translate3d(0, 0, 0);
  }
  @keyframes play {
    0% {
      transform: rotateY(0deg);
    }
    100% {
      transform: rotateY(360deg);
    }
  }